Musketry training device



May 23, 1944- z. DE L uBlcz-BAKANowsKl ErAL 2,349,615

Y MUSKETRY TRAINING DEVICE Filed Jan- 11, 1943 4 Sheets-Sheet l 12 52/ 2919 1517 26 1527 20 I21 11 JM 1213 1H`f05730831j615a232 ,l, Il

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MUSKETRY TRAINING DEVICE Filed Jan. 11,` 194s 4 Sheets-Sheet 2 el ,By

May 23,1944.

vz. DE LuBlcz-BAKANowsKl ETAL 2,349,615

MUSKETRY TRAINING DEVICE Filed Jan. 11, 1943 4 Sheets-Shee'lI 3 May 23, 1944 z. DE Luslcz-BAKANowsKI ETAL 2,349,615

MUSKETRY TRAINING DEVICE l Filed Jan. 11, '1943 4 Sheets-Sheet 4 "lll Patented May 23, 1944 2,349,615 MUSKETRY TRAINING DEVICE Zygmunt de Lubicz-Bakanowski, Frederick John Minns, and Garnet Wilfred Glover Norman, Oxford, England, assignors to The Swift Rifle Company Limited, Oxford, England Application January 11, 1943, Serial No. 472,072 In Great Britain August 19, 1941 6 Claims.

,This invention relates to musketry and vlike training devices comprising a dummy gun adapted, when the trigger is pulled, and after cocking, to project a rod having means for piercing a target.

The object of the invention is to provide a simple cocking and trigger mechanism employing a small number of parts for devices of the kind referred to.

In a musketry and like training device of the kind referred to made according to the present invention the cocking and trigger mechanism comprises a hollow bolt, a striker mounted within the bolt, a main spring mounted on the striker between an abutment fixed to the bolt and an abutment carried on the striker, a cocking piece arranged to engage the striker, a sear arranged to engage the cocking piece and to hold it and the striker immovable against the pressure of the main spring when the gun is cocked by backward and forward movement of the bolt, and a trigger arranged to actuate the sear to release the cocking piece and, consequently, the energy of the cocked spring to attuate the striker whereby the piercing end of the, latter is projected from the gun.

The bolt has a bayonet slot engaged by an abutment on the cocking piece, permitting the bolt to be slidden backwards and forwards, and rotated, relatively to the cocking piece.

The bolt has an abutment adapted to engage the abutment on the cocking piece towards the end of the backward movement of the bolt whereby on further backward movement of the bolt the cocking piece is moved therewith into a position in which it is engaged by the sear, subsequent forward movement of the bolt energizing the main spring. i

A safety catch comprising a pivoted pawl-like member arranged for locking engagement with the bolt in the extreme forward position is provided to prevent accidental rotation of the bolt.

The cocking and trigger mechanism is mounted in a frame and constitutes a self-contained unit for fixing to the gun.

The rod to be projected is made in two parts screwed together so as to be adjustable for length.

The piercing end of the rod is guided between the side walls of a gutter, the space between the walls being adjustable by means of adjusting screws.

A part of the rod adjacent the piercing end is upwardly inclined and arranged to pass between upper and lower guides, one of which cornprises an eccentric pin mounted for rotary adjustment, for the purpose hereafter described.

The said rod is guided in a bi-conical bearving supported in the stock of the gun, the rear end of the rod passing through the front end of `the bolt and butting against a nose piece on the striker.

One way of carrying the invention into eect is illustrated in the accompanying drawings, wherein- Figure 1 is a longitudinal section of the butt end of the gun showing the mechanism in the uncocked positionand Figure 1a is a section similar to Figure 1 showing the muzzle end of the gun.

Figures 2 and 2a are views similar to Figures 1 and 1a showing the parts in the cocked position.`

" Figure 3 is a cross-sectional view on line III-III, Figure 2.

4Figures 4 and5 are cross-sectional views on lines IV--IV and V-V respectively, Figure la.

` Figure 6 is a detail underneath plan view of the front end of the bolt and firing mechanism frame.

Figure 7 is an end view of Figure 6. Figure 8 is a cross sectional view on the line yin- VIII of Figure 1a.

Figures 9, 10, 11 and 12 are perspective views of the various parts constituting the cooking mechanism, and

Figure 13 is a perspective view showing the relationship of the gun to the target.

In the form illustrated in the drawings the wooden stock comprises upper and lower parts I0, II, screwed together and channelled interiorly so as, when assembled, to provide an interior space I2 to accommodate the operating mechanism, the butt I3 being integral with the lower part II of the stock. The dummy gun is similar to a real gun, for example a service riie of any known type, as regards the construction of the front and back sights I4, I5, the parts` to be handled by the user, and as regards its weight and the distribution of its weight, the latter being ensured by a ballast bar I6 screwed to the lower part Il of the gun. In view of the closeness of the target, as will be clear hereafter, the position of the front sight is nearer the back sight than it would be in a corresponding service riiie, and the foresight blade is correspondingly thinner. The rod carrying the piercing end to be projected, comprises two parts I1, IIa, screwed together by means of a connector piece I welded to the part I'Ia, the part I1 receiving a lock nut I8. This arrangement permits the length f the rod I1, I1a to be accurately adjusted. The rod is mounted between metal'side plates I9, |91, closed at the fore end by an endV plate 20 having a recess in its upper edge in which the rod I1 is slidably supported. The front endof the rod I1v is inclinedgrupwardly and is slidablyfmounted between aguides* comprising a rotatably adjustff able pin 201 having an eccentric groove 202 and l a roller 42I mounted in a housing.2l1 said heus--l inglbeing pivotally mounted on pivot pins 12li?` adjustment about the pivot 2I2 being effected by a set screw 2I2, and the rod. I1 terminates, in,a. pair of pins 22, 23. The eccentric-groove in the bolt 201 provides an eccentric bearing pin for the;-4

rod. The piercing'end of the rod when inside the stock, and when the gun is cocked (Figure 2a), is below the line of sight, but.Y the arrangement described causes it during projection to move upwards into the line of sight (Figure la);

to raise or lower the housing 2|1 and the 'roller 2 .I Forward v movement of the rod compresses sp `vg s2425, arranged between sliding sleeves 26121, l prQJ'ectionr, fThe part I1 passes throughabiconical passage bored through, apin 28 secured to, asupport 23 the sides of which pass between the sidefsrof` theballastbar I6 and the sides of the stock andturn underneath the former, Ythe bottom being screwedto the bottom of the stock. The'ypinsfg, 23 are, attached to Vthe rod .I'I by means'of a socket I1l and the saidv socket slides between a. gutter comprising a `substantiallylU- shaped plate 2 (Figure 5) mounted in the muz- `-zle of, the gun, the width between the sides of the plate 2 being adjustableby adjusting screws Q3.. 3.4-, the-inner, ends .Gf .Which bear against the sidesfof the plateV ;2f,fvi 1,hic1'1'v tend lto v spring apart. The iiringand trigger mechanism is mounted in a frame rand constitutesa.selffcontainedmit vwhich then serve to return ther'od after Vis slidably mountedin a passageway 43 formed v member 4l) is operated to` lock the bolt lever the vpawl 38 swings upwards passing through an aperture in the bottom of the frame 3l) and engages in-a-r`ecess 4I inthe rear edge of the bolt therebypreventing any rotation of the bolt. Y

.TheilongitudinalslotI 34 `in the boltis engaged s by the upturnedendy of a cocking piece 42 which between; side plates 44, 45 (Figure 3) between which the trigger 45 and Sear 41 are pivotally mounted, the'bottom of the passageway on which the: cooking piece 42 slides being constituted by a ,block 48 secured between the side plates 44,45.

Theblock df'carriesfa pin 43 on which is disposed'a coil'spring 50' bearing at itsy lfree endA on the` sear 41 Aand vtending normallyV to move the sear into,y or hol'd'it in,Y a position in which its upper edgeengages avshoulder or stop 5I formed the, lower surface ofv the cooking piece 42.

'comprising a disc bored centrally to admit the striker ane nxed to, or integral with 'the llijrf'nlvlovv*V bolt, and' extending across thejinternal diameter thereof; At the rear end'kof the Vstriker 0.13 xing tothe gun. VBetween the side walls of the unit U-shaped kmetalframe,311| is securedvby screws... a metal. block .3l bored longitudinally to receive` the, hollow-.bolt 32, thelfrront end of' which is internally'screwed to receive a screwitsfj backward and forward movement, and a loclgingnu't, 332 to prevent ,movement of` the ,threaded .Shank in 11S@- Figure 4'7 the guide. plate 331 is showninfull 4lines.' injthe.positionin which fthe bolt lever 36 is 'shown inzFigur'e 3.` In this position a ata 'onthe flange, b of the plate 331 butts against c' formed bycutting away` part of the v. When the lever l33 'is ofthe-.frame 3B. dj .to move the'l'bolt vbackwards and forwardsthf'e :guide plate 331 is rotated with the bolt 13't0thep0sition shown in`dott'ed lines in which the two hats a, a on' the vflange b can slide along the` 't0n' edges of the frame 30 thereby preventing rocking of the bolt, relativelyvto theframe `during the cockin'gmovement.

l The bolt 32 has abayonet slot formed by cuttin'giaway part of Vits wan longitudinally as 'shown at v34 v(Figure `10) for ai substantial part lyofjfits length, therear end of the slot being eX- tf ved"circumfereritially on one side as shown 52",(Figure l2) lisan enlargement 54 which can slide ,into andout ovfjthve'rear end of thehollow bolt; A nose 55' is Secured to the frontend of the striker a'rildyha/st; a-"rear'ange orshoulder ',53Mwhich`rcan be engaged by theupturned end ofthe cockingpiece 42. The rear end oflthe rod I1 bears against the nose 55.v The main spring i'smadein two parts 51, 511 and surrounds the striker, thegpart S'Ibeing disposed between .the guide, 53 and a movable sleeve' 58, and thelpart 5111 being disposed between the movable sleeve 58 and the nose 55.

vThetrigger is locked inl an inoperative'position until thefgun is vcorrectly 'shouldered by means of aspring-pressed rod "63M mountediin Athe buttrof the rifle and having a recess BIl ad.- jacent 'tofthe ,endthereo ,When the gunl is not correctly` shouldered the unrecessed end rof .the rod preventsthe operation of the ltrigger,

but when,Y correctly ,shoulderedmtherrecess `5I .is 'moved' over the'trigger andallows ,theKI trigger t' bepu11ed-. j Y figf Ahook 62 is secured to the bottom of the stock in orderjto fmount the gun in operative'association with a vtarget',carrying stand ,39;(Figure lf3),

,the hook engaging a yoke B9." .f`

w,A 'metal strip 63 is screwed 'aroundthe muz'-, zle end ofthe stock` guardincludesra front plateillliayinggan aperture through whichis passed` ascrewV cm@- v'gaging infarfnut` 61,secured-`torthe bottornlof the gutter 2.` The screw 65serves for attach.- ing a Vsight control frame `-to thev muzzle :off the gun for testing, the laccuracy of` the position of pin`23.relatively to thegline ofv sight.

morder to cock the gun the bou; lever is turned upwardsthrough. approximately 90. and the-bolt pulled to thererar.l No. resistance is encountered until the edgeA of the `locking` nut 332.1engages against the upturned end of the'cocking 'piece-1.42 whereupon furthery backwardmovementof the bolt moves the cooking piece slightly. backward vto 'enable the sear"to re.,engag`.e. theA stopT 5I4 on :the

to provide aneedle guard.I

cooking piece. The bolt is now moved forwardly, compressing the spring 51, 511 against the nose 55 of the striker held Xed by the cooking piece 42 and sear 41 until the bolt lever can again be rotated back into the recess 31 whereupon the gun is cocked and ready to fire. In order to fire the gun it must rst be correctly shouldered to release the trigger, as above explained. When the trigger is pulled the sear releases the cooking piece, which in turn releases the striker to actuate the rod I1, |1a, which is thus moved forwardly to project the pins 22, 23, to pierce the target. The springs 24, 25 are energized during the forward movement of the rod and serve subsequently to return the rod to the positionshown in Figure 1a.

In a modioation, instead of being in horizontal relationship the two pins 22, 23 may be in vertical relationship, the pin 23 being stil1 arranged to come into the line of sight during projection.

We claim:

1. In a dummy gun for musketry and like training purposes in which a rod mounted in the stock of the gun and having means for piercing a target is adapted to be projected when the trigger is pulled, a cooking and trigger mechanism comprising: a hollow bolt; an abutment fixed to the bolt; a striker mounted within the bolt; an abutment carried on the striker; a main spring mounted on the striker between the said two abutments; a

cooking piece arranged to engage the striker; a

sear capable of engaging the cooking piece and to hold it and the striker immovable against the pressure of the main spring when the gun is cocked by backward and forward movement of the bolt; and a trigger for actuating the sear to release the cooking piece, whereby the energy of the cocked main spring is released to actuate the striker and the latter acts on the rod to proj ect its piercing means from the gun.

2. A dummy gun having a cooking and trigger mechanism as claimed in claim 1, in which the hollow bolt is formed with an L-shaped slot and the cooking piece has an abutmen*u in engagement with the said slot, whereby the boit is released to be slidden backwards and forwards, and rotated, relatively to the cooking piece.

3. A dummy gun having a cooking and trigger mechanism as claimed in claim 1, in which the hollow bolt is formed with an L-shaped slot and the cooking piece has an abutment in engagement with the said slot, whereby the bolt is released to be slidden backwards and forwards, and rotated, relatively to the cooking piece and in which the bolt also has an abutment adapted to engage the abutment on the cooking piece towards the end of the backward movement of thebolt, whereby on further backward movement of the bolt the cocking piece is moved therewith into a position in which it is engaged by the sear and the main spring is loaded by subsequent forward movement of the bolt.

4. A dummy gun having a cooking and trigger mechanism as claimed in claim l and further comprising a frame in which the cooking and trigger mechanism is mounted to form a selfcontained unit for xing into the gun.

5. A dummy gun having a cooking and trigger mechanism as claimed in claim 1 having a gutter the side walls of which serve as a guide for the piercing means of the rod and adjusting screws for adjusting the space between the said side walls.

6. A dummy gun having a cooking and trigger mechanism as claimed in claim 1 having upper and lower guides between which passes part of the rod adjacent the piercing means, which part is upwardly inclined, one of the said guides comprising an eccentric pin for rotary adjustment.

Z. DE LUBICZBAKANOWSKI. FREDERICK J. MINNS. G. W. G. NORMAN. 

